Vitamin D levels can be measured with a blood test. This test can indicate whether you have adequate levels, are at risk of a vitamin D deficiency, or have levels that are too high. Levels that are ...

Vitamin D toxicity, also known as hypervitaminosis D, is a rare but potentially dangerous condition that kicks in when ...

New research indicates that for patients with advanced skin cancer, it may be important to maintain normal vitamin D levels when receiving immunotherapy medications called immune checkpoint inhibitors ...

Maintaining normal vitamin D levels may improve the efficacy of immunotherapy in patients with advanced melanoma, a new study suggests. The finding comes from a study of 200 patients with melanoma who ...